1-) 1«Q1 



New Series, No. CXXV (Vol. XXXII, Part 1). Price 10s, 



JANUAET, 1891. 



'16'2'j. 



THE 



QUARTERLY JOURNAL 



OK 



MICROSCOPICAL SCIENCE. 



BDITBD BY 



E. RAY LANKESTER, M.A., LL.D., E.K.S., 



Honorary Fellow of Exeter College, Oxford; Jodrell Trofessor of Zoology in University College, London; 

 and Deputy Linacre Professor of Human and Comparative Anatomy in the University of Oxford. 



WITH THK CO-OPKIiATION Oy 



E. KLEIN, M.D., F.E.S., 



Lecturer oh General Anatomy and Physiology in the Medical School of St. Bartholomew's Hospital, 



London, 



ADAM SEDGWICK, M.A., E.E.S., 



Fellow and Assistant-Lecturer of Trinity College, Cambridge. 

 AND 



A. MILNES-MAESHALL, M.A., D.Sc, M.D., E.E.S., 



Late Fellow of St. John's College, Cambridge ; Professor in the Victoria University ; Beyer Professor of Zoology 

 in the Owens College, Manchester. 



WITH LITHOGEAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON: 

 J. & A. CHURCHILL, 11, NEW BUELINGTON STREET. 



MDCCCXCI. 



Adlard and Son,] [Bartholomew Close. 



